Quote:
Originally Posted by rrgrassi
Remember radiant heat will reflect off the pavement and heatsoak the underside of the car.
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Indeed, which is why my engine was hotter the frist (cooler) day than yesterday.
Interestingly, it also applies even when moving, not just when parked. As I drove home last night the temp stayed at a nice constant 90C on flat ground for the first 30 minutes of my drive, and then crept up toward 100C when I got on some fresh, very black, asphalt, even through I was still moving 40 MPH. All that absorbed and reflected heat had to be adding to the engine temps.